:root {
  color-scheme: light;
  --bg: #f5f6fa;
  --bg-glow: rgba(99, 102, 241, 0.12);
  --surface: #ffffff;
  --surface-2: #f1f3f9;
  --border: #e3e6ef;
  --text: #0f172a;
  --muted: #64748b;
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-soft: rgba(79, 70, 229, 0.1);
  --on-primary: #ffffff;
  --success: #16a34a;
  --success-soft: rgba(22, 163, 74, 0.12);
  --warning: #d97706;
  --warning-soft: rgba(217, 119, 6, 0.12);
  --danger: #dc2626;
  --danger-soft: rgba(220, 38, 38, 0.12);
  --checker-a: #ffffff;
  --checker-b: #e8ebf2;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow: 0 1px 3px rgba(15, 23, 42, 0.06), 0 8px 24px rgba(15, 23, 42, 0.06);
  --radius: 14px;
  --radius-sm: 10px;
  --font: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.5;
  color: var(--text);
  background:
    radial-gradient(1200px 500px at 50% -200px, var(--bg-glow), transparent 70%),
    var(--bg);
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
p {
  margin: 0;
}

button,
input,
select {
  font: inherit;
  color: inherit;
}

svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

[hidden] {
  display: none !important;
}

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--surface) 80%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}

.topbar-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
  color: var(--text);
  text-decoration: none;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.8rem;
  color: var(--muted);
  background: var(--surface);
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 3px var(--success-soft);
}

.layout {
  flex: 1;
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 40px 24px 48px;
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  grid-template-areas:
    "hero hero"
    "settings workspace";
  gap: 24px;
  align-items: start;
}

.hero {
  grid-area: hero;
  text-align: center;
  padding: 8px 0 16px;
}

.hero h1 {
  font-size: clamp(1.7rem, 3.5vw, 2.6rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
  font-weight: 800;
}

.accent {
  background: linear-gradient(90deg, #6366f1, #a855f7);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p {
  max-width: 620px;
  margin: 12px auto 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.settings-panel {
  grid-area: settings;
  position: sticky;
  top: 84px;
  padding: 20px;
}

.panel-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border: 0;
  padding: 0;
  margin: 0 0 18px;
  min-width: 0;
}

.field-label {
  padding: 0;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
}

select {
  appearance: none;
  width: 100%;
  padding: 10px 36px 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E") no-repeat right 10px center / 18px;
  cursor: pointer;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

select:hover {
  border-color: color-mix(in srgb, var(--primary) 40%, var(--border));
}

select:focus-visible {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-soft);
}

.segmented {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  padding: 4px;
  gap: 4px;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
}

.segmented label {
  position: relative;
}

.segmented input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.segmented span {
  display: block;
  padding: 6px 2px;
  border-radius: 7px;
  text-align: center;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--muted);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.segmented input:checked + span {
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow-sm);
}

.segmented input:focus-visible + span {
  outline: 2px solid var(--primary);
}

.color-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  color: var(--muted);
}

.color-row.inactive {
  opacity: 0.5;
}

input[type="color"] {
  width: 36px;
  height: 36px;
  padding: 3px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  cursor: pointer;
}

input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
}

input[type="color"]::-webkit-color-swatch {
  border: 0;
  border-radius: 5px;
}

.hint {
  font-size: 0.8rem;
  color: var(--warning);
}

.toggles {
  gap: 14px;
  margin-bottom: 0;
}

.switch {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
}

.switch input {
  position: absolute;
  opacity: 0;
}

.switch-track {
  position: relative;
  flex-shrink: 0;
  width: 38px;
  height: 22px;
  margin-top: 1px;
  border-radius: 999px;
  background: var(--border);
  transition: background 0.2s ease;
}

.switch-track::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  transition: transform 0.2s ease;
}

.switch input:checked + .switch-track {
  background: var(--primary);
}

.switch input:checked + .switch-track::after {
  transform: translateX(16px);
}

.switch input:focus-visible + .switch-track {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.switch strong {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
}

.switch small {
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
}

.workspace {
  grid-area: workspace;
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 0;
}

.dropzone {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 40px 24px;
  border: 2px dashed color-mix(in srgb, var(--primary) 30%, var(--border));
  border-radius: var(--radius);
  background: var(--surface);
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.dropzone:hover,
.dropzone.dragging {
  border-color: var(--primary);
  background: color-mix(in srgb, var(--primary) 4%, var(--surface));
}

.dropzone.dragging {
  transform: scale(1.01);
}

.dropzone-icon {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  margin-bottom: 8px;
  border-radius: 16px;
  color: var(--primary);
  background: var(--primary-soft);
}

.dropzone-icon svg {
  width: 26px;
  height: 26px;
}

.dropzone-title {
  font-weight: 600;
  font-size: 1.05rem;
}

.dropzone-sub {
  font-size: 0.85rem;
  color: var(--muted);
}

.link {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 12px 12px 18px;
}

.toolbar-info {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  font-size: 0.9rem;
}

.toolbar-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.progress {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.progress-track {
  width: 160px;
  height: 6px;
  border-radius: 999px;
  background: var(--surface-2);
  overflow: hidden;
}

.progress-bar {
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #6366f1, #a855f7);
  transition: width 0.3s ease;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--primary);
  color: var(--on-primary);
  box-shadow: 0 4px 14px color-mix(in srgb, var(--primary) 35%, transparent);
}

.btn-primary:not(:disabled):hover {
  background: var(--primary-hover);
}

.btn-secondary {
  background: var(--surface);
  border-color: var(--border);
}

.btn-secondary:not(:disabled):hover {
  background: var(--surface-2);
}

.btn-ghost {
  background: transparent;
  color: var(--muted);
}

.btn-ghost:not(:disabled):hover {
  color: var(--danger);
  background: var(--danger-soft);
}

.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--surface);
  color: var(--muted);
  cursor: pointer;
  transition: color 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.icon-btn:hover {
  color: var(--text);
  background: var(--surface-2);
}

.icon-sun {
  display: none;
}

.empty-state {
  padding: 32px;
  text-align: center;
  font-size: 0.9rem;
  color: var(--muted);
  border-radius: var(--radius);
  border: 1px dashed var(--border);
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

.card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  animation: pop-in 0.25s ease;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

@keyframes pop-in {
  from {
    opacity: 0;
    transform: scale(0.96);
  }
}

.checker {
  background-color: var(--checker-a);
  background-image: conic-gradient(var(--checker-b) 25%, transparent 0 50%, var(--checker-b) 0 75%, transparent 0);
  background-size: 16px 16px;
}

.card-media {
  --pos: 50%;
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}

.card-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.img-result {
  display: none;
  clip-path: inset(0 0 0 var(--pos));
}

.compare,
.compare-handle {
  display: none;
}

.card[data-status="done"] .img-result {
  display: block;
}

.card[data-status="done"] .img-original {
  clip-path: inset(0 calc(100% - var(--pos)) 0 0);
}

.card[data-status="done"] .compare {
  display: block;
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  opacity: 0;
  cursor: ew-resize;
}

.card[data-status="done"] .compare-handle {
  display: block;
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--pos);
  width: 2px;
  transform: translateX(-1px);
  background: #fff;
  box-shadow: 0 0 0 1px rgba(15, 23, 42, 0.25);
  pointer-events: none;
}

.compare-handle::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%234f46e5' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m9 6-6 6 6 6M15 6l6 6-6 6'/%3E%3C/svg%3E") no-repeat center / 16px;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.3);
}

.card-loading {
  display: none;
  position: absolute;
  inset: 0;
  place-items: center;
  background: color-mix(in srgb, var(--surface) 55%, transparent);
  backdrop-filter: blur(2px);
}

.card[data-status="processing"] .card-loading {
  display: grid;
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--primary-soft);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.card-body {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 10px 10px 14px;
}

.card-info {
  flex: 1;
  min-width: 0;
}

.card-name {
  font-size: 0.88rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 2px;
  font-size: 0.75rem;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
}

.badge {
  flex-shrink: 0;
  padding: 1px 8px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.7rem;
  background: var(--surface-2);
  color: var(--muted);
}

.card[data-status="processing"] .badge {
  background: var(--primary-soft);
  color: var(--primary);
}

.card[data-status="done"] .badge {
  background: var(--success-soft);
  color: var(--success);
}

.card[data-status="error"] .badge {
  background: var(--danger-soft);
  color: var(--danger);
  cursor: help;
}

.card[data-status="error"] {
  border-color: color-mix(in srgb, var(--danger) 40%, var(--border));
}

.card-actions {
  display: flex;
  gap: 6px;
}

.card-actions .icon-btn {
  width: 30px;
  height: 30px;
}

.card-actions svg {
  width: 16px;
  height: 16px;
}

.btn-download {
  color: var(--primary) !important;
}

.btn-remove:hover {
  color: var(--danger) !important;
  background: var(--danger-soft) !important;
}

.footer {
  padding: 24px;
  text-align: center;
  font-size: 0.8rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
}

.toasts {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 50;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: min(380px, calc(100vw - 40px));
}

.toast {
  padding: 12px 16px 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  border-left: 4px solid var(--primary);
  background: var(--surface);
  box-shadow: var(--shadow);
  font-size: 0.88rem;
  animation: toast-in 0.25s ease;
}

.toast-success {
  border-left-color: var(--success);
}

.toast-warning {
  border-left-color: var(--warning);
}

.toast-error {
  border-left-color: var(--danger);
}

.toast.leaving {
  animation: toast-out 0.2s ease forwards;
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
}

@keyframes toast-out {
  to {
    opacity: 0;
    transform: translateX(16px);
  }
}

@media (max-width: 900px) {
  .layout {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas:
      "hero"
      "settings"
      "workspace";
    padding-top: 24px;
  }

  .settings-panel {
    position: static;
  }
}

@media (max-width: 560px) {
  .topbar-inner,
  .layout {
    padding-left: 16px;
    padding-right: 16px;
  }

  .chip {
    display: none;
  }

  .toolbar {
    padding: 12px;
  }

  .toolbar-actions,
  .toolbar-actions .btn {
    flex: 1 1 auto;
  }

  .gallery {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #0b0f19;
    --bg-glow: rgba(99, 102, 241, 0.18);
    --surface: #121826;
    --surface-2: #1b2334;
    --border: #263045;
    --text: #e5e9f2;
    --muted: #8b95a9;
    --primary: #818cf8;
    --primary-hover: #a5b4fc;
    --primary-soft: rgba(129, 140, 248, 0.16);
    --on-primary: #0b0f19;
    --success: #4ade80;
    --success-soft: rgba(74, 222, 128, 0.14);
    --warning: #fbbf24;
    --warning-soft: rgba(251, 191, 36, 0.14);
    --danger: #f87171;
    --danger-soft: rgba(248, 113, 113, 0.14);
    --checker-a: #1c2433;
    --checker-b: #242e40;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.3);
  }

  :root:not([data-theme="light"]) .icon-sun {
    display: block;
  }

  :root:not([data-theme="light"]) .icon-moon {
    display: none;
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0b0f19;
  --bg-glow: rgba(99, 102, 241, 0.18);
  --surface: #121826;
  --surface-2: #1b2334;
  --border: #263045;
  --text: #e5e9f2;
  --muted: #8b95a9;
  --primary: #818cf8;
  --primary-hover: #a5b4fc;
  --primary-soft: rgba(129, 140, 248, 0.16);
  --on-primary: #0b0f19;
  --success: #4ade80;
  --success-soft: rgba(74, 222, 128, 0.14);
  --warning: #fbbf24;
  --warning-soft: rgba(251, 191, 36, 0.14);
  --danger: #f87171;
  --danger-soft: rgba(248, 113, 113, 0.14);
  --checker-a: #1c2433;
  --checker-b: #242e40;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.3);
}

:root[data-theme="dark"] .icon-sun {
  display: block;
}

:root[data-theme="dark"] .icon-moon {
  display: none;
}